Description:Fully Customizable Reading Experience: Customize font size, font, font and background colors, border, alignment, line spacing, and brightness to suit your needs. The Aldiko Book Reader also supports reading at night. User+friendly interface: The Aldiko Book Reader supports both Android phones and tablets. You can create your own bookmarks, notes (for EPUB files only), and highlights (for EPUB files only) anywhere in the book by quickly navigating to another section of the book from the table of contents.